Technical data

Introduction
1.2 Upgrade Paths
If you are running Version 5.5-2, you can upgrade to Version 6.1 and then to
Version 7.3.
Caution
Install the following remedial kit before upgrading from Version 6.1 to
Version 7.3.
VAXBACK04_061
Remedial kits can be accessed at the following World Wide Web (WWW) address:
http://www.compaq.com/support/
If you have a service contract and cannot download software from the Internet,
call your Compaq support representative to receive the remedial kit on media
appropriate for your system.
Cluster rolling upgrades are supported from Version 7.1 and Version 7.2.
For complete instructions on installing or upgrading to OpenVMS VAX Version
7.3, refer to the OpenVMS Alpha Version 7.3 Upgrade and Installation Manual.
1.3 Upgrade and Installation Documentation Correction
V7.3
The warranted and migration support information in the printed version of the
OpenVMS Alpha and VAX Upgrade and Installation Manuals is incorrect. Please
use the corrected information in the following table or refer to the OpenVMS
Version 7.3 New Features and Documentation Overview.
Compaq provides two levels of support, warranted and migration, for mixed-
version and mixed-architecture OpenVMS Cluster systems.
Compaq supports only two versions of OpenVMS running in a cluster at the same
time, regardless of architecture. Migration support helps customers move to
warranted OpenVMS Cluster version mixes with minimal impact on their cluster
environments.
Table 1–1 shows the level of support provided for all possible version pairings.
Table 1–1 OpenVMS Cluster Warranted and Migration Support
Alpha/VAX V7.3
Alpha V7.2x/
VAX V7.2
Alpha V7.1–2/
VAX V7.1
Alpha/VAX V7.3 WARRANTED Migration Migration
Alpha V7.2x/VAX V7.2 Migration WARRANTED Migration
Alpha V7.1–2/VAX V7.1 Migration Migration WARRANTED
1.4 Compaq’s Support Policy
V7.3
Compaq provides support for the current version and the previous version (for up
to 12 months) of the OpenVMS operating system. For earlier software versions, a
Prior Version Support contract may be available.
1–4 Introduction